2015年6月12日 星期五

Hubble Meeting the Neighbors


The sphere of space surrounding our galaxy is known as the Local Volume, a region some 35 million light-years in diameter and home to several hundred known galaxies. The subject of this new NASA/ESA Hubble Space Telescope image, a beautiful dwarf irregular galaxy known as PGC 18431, is one of these galaxies. via NASA http://ift.tt/1L54nTr

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